i bought a polan pro 500 EX with 24hp engine 48" cut.
the engine runs ok but it moves very slow. you have to play with the foot pedel just to keep it going . is there a way to tighen the drive belt?
The belts are usualy sprung loaded with a jockey pulley and arm, so there is no way to increase tention, check the spring is still functioning, if ok then replace the belt
